tinysend

Update draft post

Delete draft post

Sends post to all active subscribers on the list. If sending would exceed the plan limit, returns 402 with MPP payment challenge (agents can pay inline) or upgrade URL.

Who emails are sent from: tinysend default, your own domain, or gmail (coming soon). Includes DNS records with found/not-found status and a plain-language next step.

type=tinysend resets to the default. type=custom_domain needs name, email (local part), domain — creates the domain in Postmark and returns the DNS records to add. type=gmail is coming soon.

Reset sender to tinysend default

Triggers a fresh Postmark verification. The cron does this every minute anyway — use this for an immediate check after adding records.

Custom domain for the public newsletter site. Includes the DNS records to add, found/not-found per record, and a plain-language next step. Verification and SSL run automatically every minute; the owner gets an email when the site is live.

Subdomains (news.acme.com) need one CNAME. Naked domains (acme.com) also get a TXT record for the security certificate and need ALIAS/flattened-CNAME support at the DNS provider; set www_enabled to serve www too.

The site keeps working at its tinysend.com subdomain.

Triggers a fresh DNS + certificate check. The cron does this every minute anyway — use this for an immediate check after adding records.

Who emails are sent from: tinysend default, your own domain, or gmail (coming soon). Includes DNS records with found/not-found status and a plain-language next step.

type=tinysend resets to the default. type=custom_domain needs name, email (local part), domain — creates the domain in Postmark and returns the DNS records to add. type=gmail is coming soon.

Reset sender to tinysend default

Triggers a fresh Postmark verification. The cron does this every minute anyway — use this for an immediate check after adding records.

Invite waitlist entries

Waitlist stats

Join a waitlist

List all lists

Create a list

Get list details

Update list settings

Delete a list

List emails

Create outbound email

Get email detail

Update email status

List all mailboxes

Create a mailbox

Get mailbox details

Update mailbox settings

Deactivate a mailbox

One-off email to a single recipient, sent synchronously from a mailbox via the Postmark transactional stream. The from address must be an existing mailbox (root tinysend.com or a verified custom domain). Supports Idempotency-Key header — a repeated key returns the original send instead of sending twice.

Get a transactional email

List contacts for project

Get contact details

Update contact notes

Lists this contact belongs to

Recent activity timeline for a contact

Emails delivered to this contact

Project-level aggregate stats

Per-list aggregate stats

List webhook subscriptions

Create a webhook subscription

Get webhook subscription details

Update a webhook subscription

Delete a webhook subscription

Recent delivery log for a webhook

Send a test event to the webhook

List automations

Create automation

Get automation

Update automation

Delete automation

List pending invites for the caller

Approve an invite

Reject an invite

Submit in-app feedback (TinysendKit)

Subscribe an email to a list (TinysendKit, double opt-in)

Get current billing period usage

Get overage billing settings

Enable or disable overage billing. When enabling, a spending cap is required.

Create a Stripe subscription programmatically. For agents with virtual cards or any API client that has a Stripe payment method. Pass a payment_method_id obtained from Stripe.js or the Stripe API.

Keyless. No API key required.

Keyless. No API key required.

Keyless. No API key required. Returns a 0-100 score and fix records.

Keyless. Returns a one-time address; send a real email to it, then GET the result for a spam score.

Keyless. Returns received=false until the email lands, then the spam score + report.